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2 years ago

11. Braydon buys a new CD and pays 8% sales tax. If the sales tax is $1.20, calculate

1 answer:

7 0

$\text{Find the price of the CD:}\\\\\text{We know that Brandon pays 8\% in sales tax}\\\\\text{We also know the cost of taxd was \$1.20}\\\\\text{Turn this into an equation, use x to represent price of CD}\\\\1.2=0.08x\\\\\text{Solve for x:}\\\\1.2=0.08x\\\\\text{Divide 1.2 by 0.08}\\\\15=x\\\\\boxed{\text{Price of CD: \$15}}$

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243.875 rounded to the nearest tenth, hundredth, ten, and hundred on a number line

sergey [27]

Nearest tenth: 243.9
nearest hundredth: 243.88
nearest ten: 240
nearest hundred: 200

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2 years ago

Read 2 more answers

According to a Field Poll conducted February 8 – 17, 2005, 79% of California adults (actual results are 400 out of 506 surveyed)

Jobisdone [24]

Answer: (0.760, 0.820)

Step-by-step explanation:

Let p be the population proportion of all adults feel that "education and our schools" is one of the top issues facing California.

Given : 79% (actual results are 400 out of 506 surveyed) of California adults feel that "education and our schools" is one of the top issues facing California.

i.e.Sample size : n= 506

Sample proportion : $\hat{p}=0.79$

Critical value for 90% confidence interval ( Using z-value table) :

$z=1.645$

Now, the 90% confidence interval for the population proportion will be :

$\hat{p}\pm z\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

i.e. $0.79\pm (1.645)\sqrt{\dfrac{0.79(1-0.79)}{506}}$

i.e. $0.79\pm (1.645)(0.0181)$

$\approx0.79\pm 0.030=(0.79-0.030,\ 0.79+0.030)\\\\=(0.760,\ 0.820)$

Hence, the 90% confidence interval for the population proportion= (0.760, 0.820)

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2 years ago

Regina takes yoga classes 2 days a week at the community center the cost for the classes is $72 and Regina pays extra$12 to rent

Kamila [148]

Answer:

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Step-by-step explanation:

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2 years ago

A spinner with 4 congruent sectors labeled 1-4 is spun. Then a die is rolled. What is the probability of getting even numbers on

SOVA2 [1]

The spinner is divided into 4 equal sections number 1 to 4.

So, for spinner, total sections = 4
Favorable sections = 2 (i.e sections with even numbers)

So, probability of getting even number on the spinner = 2/4 = 1/2

Total number of outcome when a dice is rolled = 6
Favorable outcomes= 3 (i.e outcomes with 2,4 and 6)

So, probability of getting an even number = 3/6 = 1/2

Since both events are independent, we can write:

The probability of getting an even number in both events = 1/2 x 1/2 = 1/4

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2 years ago

Sue Jones is insured for bodily injury in the amount of 10/20. She is at fault in an accident in which Albert Smith is injured.

FromTheMoon [43]

Solution:

Albert's medical expenses is = $ 12,000

Sam's come = $ 8,000

Add the amount = 12000 + 8000 = $ 20000

Sue Jones is insured for the amount = 10/20

Now, find the insurance.

(10/20)*(20,000) = 10000

Hence, $10000 pay for the insurance.

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2 years ago

Read 2 more answers